Settting up ppp interface using a GPRS shield in Raspberry Pi
Hi friends, This is my first technical blogpost here. This particular problem of setting a ppp interface using a gprs shield took me 2 complete painful weeks. So I thought of compiling everything at one place so that it might be helpful. First install ppp in Raspberry Pi sudo apt-get install ppp To configure the GPRS Shield as a dial-up modem we basically need two files 1) configuration file to tell ppp daemon where, how to find the shield and other parameters like baudrate etc. 2) A chat script the chat with the gprs modem. lets name the connection as gprs so create a file in /etc/ppp/peers with name gprs and copy below configuration debug /dev/ttyUSB0 9600 connect 'chat -f /etc/ppp/chat/gprs' defaultroute noauth lock passive usepeerdns here we have used GL868-Dual V3 telit shield and the location and name of chat script is given above /etc/ppp/chat/gprs and the chat script for telit GL868 series is given below. ABORT BUSY ABORT 'NO CARRIER'
